Tinning-machine



(No Model.) a 5 Sheets-Sheet 1; -J.HIRSGHMANN. TINNING MACHINE.

No. 520,428. Patented May 29, 1894.

n4: NATIONAL u'moaumme CBIIFANV WASHINGTON a o.

(No Model.) 6 Sheets-Sheet 2. J. HIRSGHMANN.

TINNI'NG MACHINE.

No. 520,428. Patented May 29,1894.

'THE NATIONAL mnonumna COMPANY.

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(No Model.) 5 Sheets-Sheet a.

J. HIRSCHMANN.

TINNING MACHINE.

Patented, May 29-, 1894.

W: Can], M Jar/M44 (No Model.) 5 Sheets-Sheet 4.

- J. HIRSGHMANN.

TINNING MACHINE.

Patented May 29, 1894.

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(No Model.) 5 Sheets-Sheet 5 J. I-IIRSGHMANN.

TINNING MACHINE.

No. 52,428. Patented May 29,1894.

UNITED STATES PATENT Option.

J OSEF HIRSCHMANN, OF LINFIELD, PENNSYLVANIA.

TINNING-MACHINFE.

SPECIFICATION forming part of Letters Patent No. 520,428, dated May 29,1894.

Application filed January 9,1894. Serial No. 496,319. (No model.)

To all whom it may concern.-

Be it known that I, J OSEF HIRSOHMANN, a subject of the Emperor ofAustria-Hungary, residing at Liniield, in the county of Montgomery andState of Pennsylvania, have invented new and useful Improvements inTinning-Machines, of which the following is a specification.

My invention relates to such machines, in which thin charcoal ironplates are tinned after they have been scoured, cleaned and pickled inthe usual or any preferred manner. With the machines heretoforeconstructed, many difficulties were experienced in the operationthereof, owing to the imperfect guiding and feeding mechanism for theplates as they were carried through the tin-bath but with my improvedmachine such difficulties are removed.

In my improved machine hereinafter more fully described, I employcontinuous guides for the plates, transferring or feed rolls betweenthem to take hold of each plate at its center, whereby a uniform andstraight motion of the plate is obtained and any edgewise feeding of theplates is obviated, while the continuous guides prevent any winding orcurling of the plates around the said feed rolls.

In my improved machine and by the use ofchain carriers and automaticclutches,-

which latter carry the plates through a fluxbath, a tin-bath and anoil-bath and then through bran contained in a box and automaticallydeliver the finished tin-plate, without having received any markswhatever, on a table, the number of attendants is reduced to a minimum.

My invention consists of devices assembled and operated to constitute atinning plant, and it further consists of certain improvementsin thefeeding, guiding and cleaning devices as will be hereinafter more fullydescribed and pointed out in the claims.

The invention will be more fully understood taken in connection with theaccompanying drawings forming part hereof, and in which Figure 1, is aview illustrating my improved tinning plant, and showing at the left,chain carriers for the feeding of the iron or other plates into themelting pot supported over a furnace, and at the right of the sheet thebran box, depositing table, 850., and also the operating mechanism forthe different devices. Fig. 2, is a sectional view of the furnacesupporting the melting pot containing the improved plate guides andfeeders, and also showing the oil reservoir with improved deliverymechanism, a rotatably mounted funnel for guiding the plates between thefinishing rolls, and the operating devices for the difierent parts. Fig.3, is a plan view of the melting pot with its plate operating mechanism,showing also the plate feeding table and chain carrier and the oilreservoir with the finishing rolls. Fig. 4, is a vertical section on theline 44 of Fig. 2. Fig. 5, isa similar section on the line 55 of Fig. 2.Fig. 6, is an elevation of a plate clutch attached to the links of achain carrier, the chains of which are held in stationary guidesprovided with opening wedges or devices for the said clutches. Fig. 7,is a side elevation of the clutch and opening devices shown in Fig. 6.Fig. 8, is aplan view of the chain guide showing the chain withclutching mechanism in position. Fig. 9, is a similar View to Fig. 6,'

with the exception that here are shown the stationary opening devicesfor the clutches, which cause the disengagement of the plate from thechain carrier. Fig. 10, is a section on the line 10-10 of Fig. 9. Fig.11, shows in perspective a portion of a chain carrier adapted to carrythe tinned sheets from the oil reservoir through the bran box andshowing attached thereto spring clutches as illustrated in Figs. 6, 7and 8. Fig. 12, is a section of a melting pot with modified platecarrying or forwarding devices, theplates being carried by books on anendless chain through the continuous guides immersed in the tin bath.Fig. 13, is a'vertical sectionon the line 1313 of Fig. 12.

Referring now to the drawings for a further description of myinvention,'Ais the melting pot of cast iron or other material, supportedon the furnace A, and this pot A carries one end of the plate feed B,the flux box 0 and the oil reservoir D.

The plate feed B comprises a slanting table b provided with a centralslot 1) and an endless chain 1) passed over two sprocket wheels b and bthe latter being driven from the main shaft A by a chain 1 and wheel bon the shaft of the plate feed supported by the melting pot A. Thechain 1) is provided with hooks or projections o which move the ironplates along the table I); the latter is curved at b so as to extendinto the flux box 0 and directly above the funnel e of a guide to bepresently described. The table I) is further provided at the curved endb with a hinged cover b which may be fastened at its free end by anysuitable catches to the table 17, to guide the plates around the curvedend b of the table I) and into the funnel e. The object of hinging thiscover 6 at b is to allow cleaning of the chute formed by the table b andcover b and to prevent any sticking together of the two parts by thesolidification of the flux contained in the box 0, should the machine beout of operation during night or other times. 12 is a spring,

which may be employed to regulate the feed of the plates into the funneland guides before mentioned.

In the melting pot A is provided on each side thereof one continuouscurved guide E extending about the Whole length of the pot A, and at theleft hand terminal the guides on both sides are opened to form a funnele, which is directly below the chute aforesaid. At certain points closerin distance than the length of the plates to be tinned are sets of feedrolls E, in the present instance four in number, which are mountedcentrally between the guides E and upon shafts e and e the lower shaftse are journaled in bearings provided in the guides E, which are held inplace in the pot A by the depending plates 6 and cross plate e? fastenedto each other and the pot A by bolts. The upper shafts e however arejournaled in slide beari n gs e the ways e of which are formed with theguides'E, and the rolls E of the shafts 6 can be adjusted with referenceto the lower rolls E to accommodate different thicknesses of plates tobe tinned or to produce more or less pressure on the said plates; theroll adjusting devices are as follows, each slide bearing 6 is providedwith a projection c with which a lever e hinged to one side of the way aengages; two such levers e of ad jacentbearings are coupled by slottedconnections 6 to a rod e projecting beyond a bearing a of the roll andguide frame supporting plate a, and between this bearing 6 and anadjustable collar 6 is placed a pressure spring 6 which tends to pressthe top rolls onto the lower rolls, and this pressure may be-increasedor decreased by turning the screw hand wheels e to adjust the springs e.

The rolls of each set of feed rolls E are geared together by wheels 6and the shafts e of the lower rolls are driven by suitable sprocketwheels and the chains 3, 4, 5 and 6 from the counter shaft A", whichreceives motion from the main shaft A by the sprocket wheels and thechain 2. All the guides and rolls with their adjusting devices andoperating mechanism, together with the shaft A are held on the crossplate 6, so that by removing the latter,'the whole apparatus can belifted out of the melting pot A for repair, cleaning or for any otherpurpose.

At the left hand side of Fig. 2, is provided the usual flux-box O, whichis detachably connected to the melting pot A, and at the opposite end ofthe melting pot and extending into the same, isdetachably fastened theoil reservoir D. The Walls of the latter carry a removable frame (1, inwhich the sets of finishing rolls d'and d are held, one roll of each setis journaled directly in the frame d,while theother is journaled inslide bearings d properly guided in ways of the frame; each slidebearing is provided with a bifurcated stem d, which engages with a leverd. The latter are hinged with their lower ends at d on opposite sides ofthe frame 01 and are provided at their upper or free ends with clevises(Z and each two opposite levers d on one end of the two sets of rollersd and 01 have one turnbuckle d for the clevises d to draw together orseparate at will the free ends of the levers (Z and thereby the rolls dand 11 to adjust the pressure of the rolls or to accommodate differentthicknesses of plates. The sets of finishing rolls d and d are drivenfrom the main shaft A by sprocket wheels and the chains 7 and 8.

Directly below thefinishing rolls d is provided a rotatablefunnelfhaving trunnions f which are journaled in extensions of the framecl. This funnelfguides the plates as they issue from the guidesEandrolls E into the frame (1 respectively into the oil reservoir andbetween the finishing rolls d and d and the object of making the funnelrotatable is, to gain access to the dividing line of the molten tin andthe oil, as there are always collecting impurities of either substanceand the attendant in charge should be able to remove the same, when itbecomes necessary and without having to remove most of the machinerycontained in the oil box. On one of the trunnionsf' is provided an arm fto which a shifterf is hinged, and at the upper end of the shifter isprovided a cotter pin f engaging a bracket f to which the shifterf maybe safely locked by the pin, when the funnel is in position to act as aguide.

In same cases of accident or repair, the finishing rolls and theirconnecting devices must be removed and this can easily be done byunscrewing the frame cl from the brackets d as all such devices aremounted on the frame (1 which then may be lifted out of the oil, whichmay remain in the reservoir undisturbed, in contradistinction to the oldmake of such machines where the oil had to be pumped out of thereservoir and the latter had to be removed and replaced, &c.

To carry the tinned plates from the finishing rolls d and d to andthrough the bran box G and deposit them automatically onto the table HFig. 1, I employ achain carrier I,

which passes around the studded chain wheels d Figs. 2 and 5 to 8, thenupward and around the set of eccentric wheels '5, then over the wheels1' in the bran box G, the wheels 71 through the brushes k and it, aroundthe idlers 2' the eccentric wheels 71 and back to the wheelsd The wheelspertaining to a set for instance the eccentric wheels t" or t are eachkeyed to a shaft, so that an equal movement of the carrier chains 2' isinsured; the chain carrier I is-operated from the main shaft A by thechain 9 leading to the counter shaft 2, which is geared to the shaft ofthe eccentric wheels i by the wheels i to reverse the motion of the saideccentric wheels i and the upper eccentric Wheels 2" are driven from thecounter shaft '5 by the chain 10. This chain carrier I consists of thechains iprovided with automatic clutches n, fastened or formed on linksof the chains 1' at certain distances, the length of the plates to betinned plus a clearing space of about one or two inches; the clutchncomprises a jaw n fixed to a link of the chain 1' and a sliding jaw72?, the former is provided with a slot 72 and a bore 01 in which latterthe stock n of the sliding jaw n moves. This stock n is provided with acollar 02 and a spring n which presses against the fixed jaw n tonormally hold the sliding jaw n against the jaw n and clamp a sheetbetween them; on the other end of the stock of, is attached a roller n,which when brought into contact with a wedge n and moved along thesame, separates the two jaws to either allow a sheet of tin or otherplate to enter the jaws or to be released fromits grip. To guide theplates as they leave the finishing rolls 01' into these clutches n,funnel shaped projections 01 are provided on the fixed jaws it. Whenever the opening of the jaws n and n has to be accomplished either forgripping or releasing a plate 00, the chains 2 are led through guides Zfastened to brackets L attached to the oil reservoir D and brackets L onthe table H respectively, to insurethe proper engagement of the rollers92 on the stock if of the sliding jaws n with the wedge n of the saidbrackets L or L.

The eccentric wheels t" and 2' are provided to cause the chain carrier Ito move at intervals slower orfaster, 2'. e. the plates ware fed quite adistance into the clutches, before the latter are allowed to grip thesaid plate, and the clutches move at such feeding quite slow beingalmost motionless; but as soon as the chain carrier passes onto and overthe major axis of the eccentric wheels t" it makes up for the speedlost, while gripping the plate, as willbe readily understood.

In Figs. 12 and 13, I have shown a modified form of forwarding mechanismin the melting pot for the sheets to be tinned. In this instance theguides E and mechanism in the oil reservoir D remain the same, the onlydifference being, that instead of feed rolls E being employed, use ismade of an endless chain K provided with hooks k to engage the plates asthey leave the feed table I), which in this instance is provided withtwo feed chains b the chain K is mounted around a driving wheel drivenfrom the chain feed shaft by suitable gearing k and passes around idlersor rollers k The chain K drags along the under edges of the guides Einsuring thereby the engagement of any plate, which may have been fedbetween the guidesE from the table I) and bringing the said platethrough the tin bath, to the delivery rolls E and the finishing rolls dand d which are adjustably mounted as before described.

If preferred or found necessary, a guide or trough T may be attached tothe guides E, to carry the chain K and make sure of the projecting ofthe hooks it beyond the guides E.

The operation of my improved machine or rather tinning plant is asfollows: Motion is imparted to the main shaft A which operates alltheparts hereinbefore described, and the charcoal iron or other plates areplaced on the table I) from which they are conveyed into the flux box 0and guides E by the chain feed B, and before the hook b releases theplate, the first set of feed rolls E have taken hold of the plate andfed it to the next set of rolls Eand so on until it passes the finishingrolls. Itis evident that the speed of these rolls should be the same asthe feed of the chain feed 13, or in other words, the plates must beforwarded as fast as they are fed into the guides E by the chain feed13. From the finishing rolls d,the plates are taken as before describedby the clutches n of the chain carrier I, and are carried through thebran box G where most of the oil is wiped off, and are then broughtabove the table II where the clutches n are automatically opened by thebrackets L, to allow the plates or to be deposited on the table H. Thechains 2' and clutches n of the chain carrier I then pass through thebrushes k and k where the former are cleaned, so as not to bring anybran or otherimpurities into the oil reservoir D.

IIO

art to which my invention pertains, that modifications may be madewithout departingfrom the spirit of the invention.

Having thus described the nature and objects of my said invention, whatI claim as new, and desire to secure by Letters Patent, 1s

1. In a tinning machine the combination of a melting pot, a detachableframe comprising a cross plate and two side plates, the latter suspendedin the said pot and having two continuous guides, extending from eachside plate toward the center of the pot, feed-rolls between the saidguides, said rolls driven by suitable gearing and chain motion from amain shaft of the machine, a plate feed comprising a table a hingedcover and a feed chain, the latter adapted to feed the plates into thecontinuous guides and between the centrally located rolls, substantiallyas and for the purposes set forth.

2. In a tinning machine the combination of a melting pot, a detachableframe comprising a cross plate and two side plates, the latter suspendedin the said pot and having two continuous plate guides extending fromthe side plates toward the center, rolls between the said continuousguides and adapted to engage the plates to be tinned at their center toinsure a straight motion of the plate while the continuous guidesprevent-the said plates from curling, substantially as and for thepurposes set forth. a

3. In a tinning machine the combination of a feed table, a hinged coverapplied thereto, a feed chain or traveler in said table for feeding theplates to be tinned, a melting pot, a detachable frame suspended inthe-said pot, continuous guides extending from said frame toward thecenter of the said pot and leaving a central slot, feed rolls locatedbetween them and supportedby the said guides, means for operating thesaid feed rolls from a main shaft to forward the plates fed into themachine by the said chain carrier, substantially as and for the purposesset forth.

4:. In a tinning machine the combination of a melting pot, a removableframe therein, continuous guides extending the full length of themelting pot and projecting fromthe said frame toward the center so as toleave a slot, feed rolls located in said central slot and journaled inthe frame, said rolls receiving motion from a main shaft by suitablechain gearing, a plate feed partially supported by the melting pot andcomprising a slotted feed table, a feed chain traveling in said slottedtable, a hinged cover applied to said table, a spring between said coverand table to regulate the feed of the plate, and means for driving thesaid feed chain, all as described and for the purposes set forth.

5. In a tinning machine the combination of a melting pot, a removableframe suspended therein, continuous guides extending the full length ofthe said pot and communicating with a plate feed at one end andaremovable oil reservoir at the other, the plate feed comprising a tableproper, a traveling chain supported thereby and a hinged cover, thelatter adapted to guide the plates to be tinned into the said continuousguides, the removable oil reservoir supported by the said melting pot, aframe in said oil reservoir, a set or sets of finishing rolls journaledin said frame and a swinging funnel attached to the said frame and belowthe finishing rolls, substantially as andfor the purposes set forth.

6. In a tinning machine the combination of a melting pot, a removableframe suspended therein, continuous guides extending the full length ofsaid pot, a plate feed communicating at one end with the said guides andan oil receptacle communicating with the other end of the samecontinuous guides, the plate feed comprising a table partly supported bythe melting pot, a traveling chain, a hinged cover and means forregulating the feed of the plates into the continuous guides, a framedetachably connected with the oil receptacle, finishing rolls journaledin said frame, a movable funnel on said frame, said funnel adapt ed toguide the tinned plates from the said continuous guides between the saidfinishing rolls substantially as and for the purposes set forth.

7. In a tinning machine, in combination with a melting pot supported bya furnace, a

feed table, comprising a slotted table, a chain feed, a hinged coveroverthe table and chain, said cover provided with a spring for adjustingthe movements of the plates as they are fed into the melting pot,substantially as and for the purposes set forth.

. 8. In a tinning machine, the combination of a melting pot, a removableframe suspended therein, continuous guides extending the full length ofthe melting pot and projecting from the said frame toward the center ofthe pot leaving a space at the center of the said guides, sets offorwarding rolls, whose lower rolls are journaledin slide bearingsadapted to be adjusted from the exterior of the said frame, an oilreservoir detachably connected with said pot, a frame within saidreservoir and carrying sets of finishing rolls, substantially as and forthe purposes set forth.

9. In a tinning machine in combination with a melting pot havingsuspended therein continuous guides and plate feeding mechanism betweenthem, an oil reservoir detachably secured to said pot, a frame providedwith finishing rolls removably connected to said reservoir, and arotatable funnel to direct the plates from the said guides between thesaid finishing rolls, substantially as and for the purposes set forth.

10. In a tinning machine, in combination with a melting pot havingsuspended therein continuous guides and plate feeding mechanism, adetachable oil reservoir and a detachable frame within said reservoir,sets of two finishing rolls, whereof one roll is journaled in said frameand the other in slide bearings, levers hinged to said frame and bearingagainst the said slidebearings, clevises on the free ends of the levers,turnbuckles on two of said clevises, to adjust the said finishing rolls,a rotatable funnel located between the said guide and finishing rollsand mechanism for operating the same from the outside, substantially asand for the purposes set forth.

11. In a tinning machine comprising a feed table, chain feed and amelting pot having guides and plate-forwarding mechanism within thesame, the combination of an oil reservoir detachably connected to said.melting pot, a removable frame within said reservoir, said framecarrying sets of finishing rolls and a rotatable funnel, whose trunnionsare journaled in said frame and disposed between the said guides andfinishing rolls, a crank on one of said trunnions, a bracket on saidreservoir and an operating bar hinged to said crank and adapted to lockthe said bar and funnel in place, substantially as and for the purposesset forth.

12. In a tinning machine an oil reservoir detachably fastened to themelting pot of the machine, a detachable frame within said reservolr,sets of two finishing rolls, whereof one 1s ournaled in the frame andthe other in shde bearings operated by levers hinged to opposite sidesof the frame, clevises on the free ends of the levers and turnbuckles,one for each set of two levers, substantially as and for the purposesset forth.

13. In a tinning plant the combination of a feed table, a melting pothaving plate forwarding mechanism therein, a flux box, an 011 reservoir,a detachable frame in said oil reservoir, finishing rolls in saidframes, a funnel between said finishing rolls and the forwardingmechanism in the melting pot, a bran box, a table and a chain carrier tocarry the tinned plates from the finishing rolls through the bran boxand to the table, substantiallyas and for the purposes set forth.

14:. In a tinning plant comprising a tinning machine having an oilreservoir and finishing rolls, in combination with a branbox adepositing table anda plate chain carrier, the latter composed of twolink chains and spring clutches on certain of the links of the saidchains, to carry the plates as they leave the finishing rolls throughthe bran box and deposit them onto said table, substantially as and forthe purposes set forth.

15. In a tinning plant comprising a tinning machine, a bran box, adepositing table and a plate carrier, the latter composed of a travelingbelt or chain moving over a series of pulleys and a set or sets ofeccentric wheels, the plate carrier leading from the tinning ma chineupward and around one or one set of said eccentric wheels, thencethrough the bran box, over the depositing table and back over the othereccentric wheel or set of cocentric wheels and to the tinning machine,

and means for operating said tinning machine and carrier, substantiallyas and for the purposes set forth.

16. In a tinning plant comprising a tinning machine, operating mechanismtherefor, a bran box, a depositing table,-a plate carrier leading fromthe tinning machine to and through the bran box and over the depositingtable, said plate carrier provided with automatic spring clutches togrip a tinned plate, said table provided with releasing devices for saidclutches, and cleaning brushes disposed along the return way of the saidplate carrier, substantially as and for the purposes set forth.

17. In a tinning plant, a chain carrier comprising two link-chains,certain links of each chain provided with a spring clutch comprising afixed jaw attached to said chain links, an open funnel on said fixedjaw, a sliding jaw guided in the fixed jaw, said sliding jaw tending toclose upon the fixed jaw, a shoul dered stem on the sliding jaw, aspring around the same and between the shoulder of said stem and fixedjaw and a roller on said sliding jaw, substantially as and for thepurposes set forth.

18. In a tinning plant, a chain carrier comprising two link chains, aset of eccentric forwarding wheels, a set of eccentric idle wheels andsets of guide wheels, certain of said links of each chain provided withclutches composed of two jaws whereof one is formed integral with saidchain link and the other is provided with a stock adapted to slide inthe fixed jaw, a collar on the said stock, a spring between said collarand fixed jaw, a roller on the opposite end of the stock, and means suchas described for opening said jaws, substantiallyas and for the purposesset forth.

In witness whereof I have hereunto set my signature in the presence oftwo subscribing witnesses.

J OSEF HIRSOHMANN.

Witnesses:

I-IERMANN BORMANN, HARRY J. FRANZ.

